图中显示方程为 $y=f(x)$ 和 $y=g(x)$ 的图像。

完整描述一组由两个变换组成的变换序列，将 $y=f(x)$ 的图像变换为 $y=g(x)$ 的图像。

比较两条折线的对应转折点。每个点都左移 $6$，同时纵坐标加倍。

The corner $(3,3)$ maps to $(-3,6)$, and $(1,-1)$ maps to $(-5,-2)$. Thus a suitable sequence is to stretch by scale factor $2$ in the $y$-direction, then translate by $\begin{pmatrix}-6\\0\end{pmatrix}$. The two operations act on different coordinates, so the reverse order also works.